Behaviour of cold-formed steel built-up colums (I-Section) under axial compression

TA684.N87 2015

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Bibliographic Details
Main Author:	Nur Amalina Anuar
Format:	text::Final Year Project
Language:	English US
Published:	2024
Subjects:	Steel Buckling
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Institution:	Universiti Tenaga Nasional
Language:	English US

id	my.uniten.dspace-33153
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spelling	my.uniten.dspace-331532024-08-04T02:04:41Z Behaviour of cold-formed steel built-up colums (I-Section) under axial compression Nur Amalina Anuar Steel Buckling TA684.N87 2015 This Bachelor Degree/project explains a series of axially-compressed tests executed on cold-formed-steel built-up I columns composed of two lipped C-section fabricated back-to-back from high tensile steel plates with nominal yield stress of 550 MPa. This series of parametric studies were carried out by varying the thickness and web depth of Lysaght C-sections from C7560, C7575, C7510 and C10010 over a range of lengths of 300 mm to 700 mm such that column curves could be obtained. Each span denotes different slenderness ratios, & values (L/radius of gyration) ranging from 12.2 to 37.2 and different width-to-thickness ratio ranging from 75 mm to 125 mm. The objectives of this project were to study the buckling failure modes of cold formed steel column channels and to determine the ultimate compression capacity of the I-section with different section properties when subjected to axial compression. The test strengths were compared with the design strengths based on North American Specification (AISI-2007) for the design of cold-formed steel structural members. Vertical and horizontal deflections were measured using 4 LVDT (Linear Variable Displacement Transducer) to precisely examine the buckling modes of failure and analyse the load-displacement relationship. All of these columns failed by local and distortional buckling as well as Euler buckling for long columns. The effect of width- to-thickness ratio increases as the local buckling and distortional buckling capacity decrease. For distortional buckling mode of failure, few parameters play an important role for a cold formed steel to fail under this mode. Among the parameters are flange length, length of lipped channel and web depth. Other buckling modes such as flexural and flexural-torsional buckling were also observed. The results provide useful information regarding allowable load estimation of cold-formed steel column channels. The details of these investigations and the outcomes are presented in this thesis. 2024-07-31T08:38:59Z 2024-07-31T08:38:59Z 2015 Resource Types::text::Final Year Project https://irepository.uniten.edu.my/handle/123456789/33153 en_US application/pdf
institution	Universiti Tenaga Nasional
building	UNITEN Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tenaga Nasional
content_source	UNITEN Institutional Repository
url_provider	http://dspace.uniten.edu.my/
language	English US
topic	Steel Buckling
spellingShingle	Steel Buckling Nur Amalina Anuar Behaviour of cold-formed steel built-up colums (I-Section) under axial compression
description	TA684.N87 2015
format	Resource Types::text::Final Year Project
author	Nur Amalina Anuar
author_facet	Nur Amalina Anuar
author_sort	Nur Amalina Anuar
title	Behaviour of cold-formed steel built-up colums (I-Section) under axial compression
title_short	Behaviour of cold-formed steel built-up colums (I-Section) under axial compression
title_full	Behaviour of cold-formed steel built-up colums (I-Section) under axial compression
title_fullStr	Behaviour of cold-formed steel built-up colums (I-Section) under axial compression
title_full_unstemmed	Behaviour of cold-formed steel built-up colums (I-Section) under axial compression
title_sort	behaviour of cold-formed steel built-up colums (i-section) under axial compression
publishDate	2024
_version_	1806518003784744960

Behaviour of cold-formed steel built-up colums (I-Section) under axial compression

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